Generic 3-Piece 9S 11T 12T 13T Freewheel Flywheel Pinion For Bicycle, Bicycle Cassette Cog Single Speed Freewheel Compatible for Mountain and Road Bikes, Silver

Serves as an ideal accessory for professional cycling sessionsCrafted with superior quality materials to resist wear and abrasionsTextured, grippy surface prevent unwanted slip and safetySuitable for mountain and road bikes, offering versatility for various cycling terrains and preferences.Material：Made of steel material, corrosion-resistant, durable material s prolonged performance, providing a reliable gear solution for extended cycling endeavors.High Precision：The inner thread is finished with high precision, which close connection with the bike hub and smooth operation.

• 3-Piece 9S 11T 12T 13T Freewheel Flywheel Pinion For Bicycle, Bicycle Cassette Cog Single Speed Freewheel Compatible for Mountain and Road Bikes, Silver